February 7, 1913 THE COLLIERY GUARDIAN. 309 JNfOW READY.—Bound in Cloth, 10s. 6d.; Paper Covers, 8s. 6d. Supplementary Volume TO The Mechanical Engineering of Collieries. By T. CAMPBELL FUTERS. This Important Work consists of:— Vol. I.—Bound in Cloth. Price 21s. net. Part I.—Boring, Sinking, Surface Arrangements, Headgears, Shafts. 128 pp. Crown 4to (9J in. by 7£ in.). Illustrated by 294 Diagrams and Illustrations. (Now reprinting.) Part II.—Winding. 169 pp. Crown 4to. (9J in. by 7£ in.). Illustrated by 337 Diagrams and Illustrations. Part III.—Heapsteads, Illustrations. Screening and Washing. (Now reprinting.) 177 pp. Crown 4to (9f in. by 7| in.). Illustrated by 427 Diagrams and Separate parts in Paper Covers, Price 5s. 8d. each net. Vol. II.—Haulage, Pumping, Power and Coke Ovens, and a Complete Index to Vols. I. and II. 294 pp. Crown 4to (9f in. by 7> in.). Illustrated by 585 Diagrams and Illustrations. Paper Covers, Price 8s. 6d. ; Bound in Cloth, 10s. 6d. net. SUPPLEMENTARY VOL.—Ventilating Fans, Coal-Cutting and Conveying Machinery, Ambulance and Rescue Appliances. 238 pp. Crown 4to (9J in. by 7J in.). Illustrated by 294 Diagrams and Illustrations. Publishers: THE COLLIERY GUARDIAN CO. LTD, 30 & 31, Furnival Street, Holborn, London, E.C. Purchasers’ Guide to Advertisers’ Specialities—(continued). Forges Alldays & Onions Pneumatic Engineering Co. Ld., Birmingham Hardy Patent Pick Co. Ld„ Sheffield FORGINGS Bagnall, W. G., Ld., Stafford Chorley Railway Wagon Co. Ld., Chorley Hardy Patent Pick Co. Ld„ Sheffield Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Benton ,B. M., and Co., Midland Works, Sheffield Uskside Engineering Co. Ld., Newport Walker Bros. (Wigan) Ld., Wigan Wright, Joseph, and Co., Tipton Yorkshire Engine Go. Ld. Sheffield RIOTION CLUTOHES Bever, Dorling, and Co. Ld., Bradford, Yorks. Bridge, David, A Co. Ld., Castleton, Manchester Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Fraser A Chalmers Ld., 3, London Wall Bldgs., E.C. Longbotham, B. H., and Co. Ld., Wakefield Norton’s (Tividale) Ld., Tipton Beavell and Co. Ld., Ipswich Beddaway, F., A Co. Ld., Pendleton, Manchester Theedam, E. 0., Ld., Dudley Walker Brothers (Wigan) Ld., Wigan Wood, John, A Sons Ld., Brook Foundry, Wigan Wright, Joseph, and Co., Tipton Friction Surfaces Frood, Herbert, Co. Ld., Chapel-en-le-Frith Fuel Economisers Fell, C. A., Dronfield, near Sheffield Pillatt and Co., Stapleford, Nottingham Stringer, John, and Son, Dept. 11, Blackburn Yorkshire Boiler Co. Ld., Bradford Fuel Machinery Middleton, Bobert, Sheepscar Foundry, Leeds Uskside Engineering Co. Ld., Newport Yeadon, Son and Co., Albion-place, Leeds Furnaoes Alldays & Onions Pneumatic Engineering Co. Ld., Birmingham Bennis, Ed., and Co. Ld., Little Hulton, Bolton Leech, Goodall A Co., Huns-let, Leeds Pillatt and Co. Ld., Stapleford, Nottingham Furnace Ironwork Alldays A Onions Pneumatic Engineer) ng Co. Ld., Birmingham Heenan A Froude Ld., Worcester and Manchester Leech, Goodall A Co., Hunslet. Leeds Wood, John, and Sons Ld., Wigan Fuse Igniters Fuses (Safety) Cotton Powder Co. Ld.,32, Queen Victoria-st., E.C. Curtis’s and Harvey Ld., Cannon-st. House, E.C. Davis, John, and Son (Derby) Ld., Derby Electric Blasting Apparatus Co. Ld., Cinderford Nobel’s Explosives Co. Ld., Glasgow Ganister Brioks Gab Compressors Beiliss and Morcom Ld., Birmingham Gas Engines British Oxygen Co.Ld., Elverton-st.,Westminster Glover, M., and Co., Holbeck-lane, Leeds Railway and General Engineering Co. Ld., Notts Bobey and Co. Ld., Lincoln Tangyes Ld., Cornwall Works, Birmingham Gas Exhausters Alldays & Onions Pneumatic Engineering Go. Ld., Birmingham Koppers’ (The) Coke Oven and Bye-Product Co., Sheffield Gas Plant Koppers’ (The) Coke Oven and Bye-Product Co., Sheffield Mather and Platt Ld., Manchester Harness Hauling Drums Bever, Dorling and Co. Ld., Bradford Bridge, David, A Co. Ld., Castleton, Manchester Bumsted and Chandler Ld., Hednesford, Staffs. Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Heenan A Froude Ld., Worcester and Manchester Norton’s (Tividale) Ld.. Tipton Leech, Goodall A Co., Hunslet, Leeds Phillips, C. D., Newport, Mon. Bobey and Go. Ld., Lincoln Spencer and Co. Ld., Melksham, Wilts Sutcliffe, B., Horbury, near Wakefield Thornewill and Warham Ld., Burton-on-Trent Walker Bros. (Wigan) Ld., Wigan Wood, John, A Sons Ld., Brook Foundry, Wigan Wootton Bros. Ld., Coalville, Leicester Wright, Joseph, and Co., Tipton Youngs, Byland-street Works, Birmingham Headgears Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Heenan A Froude Ld., Worcester and Manchester Leech, Goodall A Co., Hunslet, Leeds Norton’s (Tividale) Ld., Tipton Bobey and Co. Ld., Lincoln Spencer and Co. Ld., Melksham, Wilts Wright, Joseph, and Co., Tipton Heading Machines Davis, John, and Son (Derby) Ld., Derby Hardy Patent Pick Co. Ld., Sheffield International Channelling Machines Ld., Sheffield Heapsteads Coulson, M., A Go. Ld., Spennymoor, Go. Durham Hardy Patent Pick Co. La., Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Heenan and Froude Ld., Worcester Leech, Goodall A Co., Hunslet, Leeds Longbotham, B. H., and Co. Ld., Wakefield Norton’s (Tividale) Ld., Tipton Plowright Bros. Ld., Chesterfield Spencer and Co. Ld., Melksham, Wilts Tickle Brothers, Vulcan Ironworks, Wigan Walker Bros. (Wigan) Ld., Wigan Wood. John. A Sons Ld.. Brook Foundry, Wigai, Wright, Joseph, and Co., Tipton Yorkshire Hennebique Contracting Co. Ld., Leec s Hoists Alldays A Onions Pneumatic Engineering Co. Ld. Birmingham Bleiohert’s Aer al Transporters Ld., 99-100, Pal merston House, Bishopsgate-street, 60, E.C. Daglish, Bobert, and Co. Ld., St. Helens, L&nis. Fraser A Chalmers Ld., 3, London Wall Bldgs., E. C Hardy Patent Pick Co. Ld.. Sheffield Heenan and Froude Ld., Worcester Leech, Goodall A Co., Hunslet, Leeds Mather and Platt Ld., Manchester Mavor and Coulson Ld., 47, Broad-street, Glasgow Beavell and Co. Ld., Ipswich Spencer and Co. Ld., Melksham, Wilts Wood, John A Sons Ld., Brook Foundry, Wigan Wright, Joseph, and Co., Tipton Youngs, Bvland-street Works, Birmingham Hooks or Links (Safety) Heenan and Froude Ld., Worcester Humble, Stephen, 9, Victoria-street, S.W. Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Ormerod, Edward, Atherton, near Manchester Walker, Thos., and Son Ld., Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Wright, Joseph, and Co., Tipton, Staffs. Hoppers Baker, John, and Son, Bilston, Staffs Coulson, M., and Co. Ld., Spennymoor Harvey, G. A., A Co., Woolwich-rd., London, S.E Hardy Patent Pick Co. Ld., Sheffield Heenan and Froude Ld., Worcester Leech, Goodall A Go., Hunslet, Leeds Gas Producers Gas-Testinq Lamps Ackroyd and Best Ld., Morley, Leeds Davis, John, and Son (Derby) Ld., Derby Gas Tubes and Fittings Lewis, Edwin, and Sons, Wolverhampton Stewarts & Lloyds Ld., Birmingham & Glasgow Wellington Tube Works Ld., Great Bridge, Tipton Gas Valves Haslam and Schontheil Ld., Bristol Gauge Glasses Davis, E., 2, Aire-street, Leeds Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmund-pl„ Aldersgate, E.C. Hopkinson, J., and Co. Ld., Huddersfield Eoyles Ld., Irlam, Manchester Theedam, E. C., Ld., Dudley Treasure, J. B., & Co., 8 & 12, Vauxhall-rd., L’pool Gauge Glass Protectors Davis, E., 2, Aire-street, Leeds Hopkinson, J., and Co. Ld., Huddersfield Eoyles Ld., Irlam, Manchester Theedam, E. C., Ld., Dudley Gauges Davis, E., 2, Aire-street, Leeds Green and Boulding Ld., 28, New Bridge-st., E.C. Hopkinson, J., and Co. Ld., Huddersfield Yorkshire Boiler Co. Ld., Bradford Gear (Special for Motor Lorries Cars &o.) Brown, David, & Sons (Hudd.) Ld., Huddersfield Gearing British Insulated and Helsby Cables Ld., Prescot Brown, David, & Sons (Hudd.) Ld., Huddersfield Bumsted and Chandler Ld., Hednesford, Staffs. Citroen, Andre, and Co., 27, Queen Victoria Street Daglish, Robert, and Co. Ld., St. Helens, Lanes. Jardine, John, Deering-street, Nottingham Lancaster and Tonge Ld., Pendleton, Manchester Leech, Goodall & Co., Hunslet, Leeds Thornewill and Warham Ld., Burton-on-Trent Walker Brothers (Wigan) Ld„ Wigan Wood, John, and Son Ld., Brook Foundry, Wigan Girders (Iron and Steel) Daglish, Eobt., and Co. Ld., St. Helens, Lancs. Firth, Wm., Ld., Water-lane, Leeds Heenar and Froude Ld., Manchester Henderson and Glass, Liverpool Isca Foundry Co.. Newport. Mon. Benton, B. M., and Co., Midland Works, Sheffield Scott, Walter, Ld., Leeds Steel Works, Leeds Shelton Iron, Steel and Coal Co. Ld., Stoke-on- Trent, Staffs, Ward. Thoa. W„ Limited. Albion Works. Sheffield Glass Manufacturers (Tube Rods Enamels) Guilbert-Martin. 9. Edmund-pl., Aldersgate, E.C. Governors (Engine) Evans, Joseph, and Sons (Wolverhampton) Ld., W olverhampton Mather and Platt Ld., Manchester Daglish, Eobt., and Co. Ld., St. Helens, Lancs. Tangyes Ld., Cornwall Works, Birmingham Governors (Hydraulio) Grease Chorley Bailway Wagon Co. Ld., Ghorley, Lancs. Gaunt and Hickman, Wolverhampton Trier Bros., Caxton House, Westminster Theedam, E. C., Ld., Dudley Thomas and Bishop, 119-125, Finsbury Pav., E.C. Wakefield, C. C., and Co., 27, Cannon-street, E.C. Grinding Maohinery Bridge, David, A Co. Ld., Castleton, Manchester Hardy Patent Pick Co. Ld., Sheffield Grindstones Gunpowder Curtis’s and Harvey Ld., Cannon-st. House, E.C. Gutta Peroha_ _ „ v T . Cort, Arthur, A Co. 303j, Camberwell-rd., London Hoppebs—continued Simon-Carves Ld.. 20. Mount-street. Manchester Spencer and Co. Ld., Melksham, Wilts Theedam, E. C., Ld., Dudley Wright, Joseph, and Co., Tipton Yorkshire Hennebique Contracting Co. Ld., Leeds Hose Cort, Arthur, A Co., 303|, Camberwell-rd., London Hardy Patent Pick Co. Ld., Sheffield Mining Engineering Co. Ld., Sheffield Northern Biibber Co., The Wicker, Sheffield Norton’s (Tividale) Ld., Tipton Beddaway, F., A Co. Ld., Pendleton, Manchester Willcox, W. H., A Co. Li, 23, Southwark-st., S.E. Hose (Coal-Cutter) Northern Rubber Co., Tee Wicker, Sheffield Humidifiers Heenan A Froude Ld., Worcester and Manchester Mather and Platt Ld., Manchester Hydro Electric Plants Hydraulic Machinery Daglish, Bobert, and Co. Ld., St. Helens, Lancs, Hathorn, Davey and Co. Ld., Leeds Leech, Goodall A Co., Hunslet, Leeds Mather and Platt Ld., Manchester Middleton, Bobert, Sheepscar Foundry, Leeds Pearn, Frank, A Co., Ld., West Gorton, Manchester Pulsometer Engineering Co. Ld., Reading Tangyes Ld., Cornwall Works, Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Youngs, Byland-street Works, Birmingham Hydraulio Reducing Valves Auld, D., and Sons, Whitevale Foundry, Glasgow Hygrometers Davis, John, and Son (Derby) Ld., Derby Incline Rollers Bagnall, W. G., Ld., Stafford Leech, Goodall A Co,, Hunslet, Leeds Lowmoor Co. Ld., Lowmoor Ironworks, Bradford INDIARUBBER GOODS Chorley Railway Wagon Co. Ld., Chorley, Lancs. Cort, Arthur. A Co., 3034. Camberwell-rd., London Northern Rubber Co., The Wieker, Sheffield Beddaway, F., A Co. Ld., Pendleton, Manchester Indicators (Steam Engine) Davis, E., 2, Aire-street, Leeds Davis, John, and Son (Derby) Ld., Derby Green and Boulding Ld., 28, New Bridre-st., E.C. Yorkshire Boiler Co. Ld., Bradford, Yorks Induced Draught Fans , Alldays A Onions Pneumatic Engmeerin gCc. d Birmingham Bumsted and Chandler Ld., Hednesford, Staffs. Davidson and Co. Ld., Belfast Heenan A Froude Ld., Worcester and Manchester Turbon Patent Fan Co. Ld., Llanelly Yorkshire Boiler Co. Ld., Bradford, Yorks INJECTORS AND EJECTORS o x Bailey, W. H., and Co. Ld., Salford, Manchester Green A Boulding Ld., 28, New Bridge-st., E.C. Hopkinson, J., and Co. Ld., Huddersfield Pulsometer Engineering Co. Ld., Beading Willcox, W. H., A Co. Ld., Southwark-st., S.E. Instruction (Postal) . „ , , Thomas, Wm,, Cambrian Mining School, Porth Southern, T. A., Universal Mining School, Cardiff Instruments Davis, John, and Son (Derby) Ld., Derby Thornton, A. G., Ld., King-st. West, Manchester Iron and Brass Founders Bridge, David, A Co. Ld., Castleton, Manchester British Wagon Co. Ld., Rotherham Chorley Bail way Wagon Co Ld., Chorley, Lancs Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Jardine, John, Deering-street, Nottingham Lowmoor Co. Lid., Lowmoor Ironworks, Bradford Bailwav A General Engineering Co. Ld., Notts Boyles Ld., Irlam, Manchester Spencer and Co. Ld., Melksham, Wilts Wood, John, and Sons Ld., Wigan